Homework Help: Math

Posted by Meagieting on Monday, October 1, 2012 at 8:20pm.

At the start, a biologist counts M microbes in a sample. Every day after that, the number of microbes in the sample, is multiplied by some number N.

Write the expression for the number of microbes in the sample
1) after day one
2) after day two

Use these expressions to help determine the number of microbes in the sample after the eighth day

Using only variables, "m", "n"" and "a", derive the general formula for the number of microbes found after "a" days.

Math - Reiny, Monday, October 1, 2012 at 9:07pm
Now we have M
after day 1 , we have Mn
after day 2 , we have Mn(n) = Mn^2
after day 3, we have (Mn^2)(n) = Mn^3
.
.
after day a, we have Mn^a

Number(a) = Mn^a
Math - Meagieting, Tuesday, October 2, 2012 at 8:27pm
I don't understand the symbol^.

For example for day 2..Is this the same as saying Mn to the 2nd power?
Math - Meagieting, Tuesday, October 2, 2012 at 10:05pm
Ok so I figured out it's exponent...would it be correct to write The answers as follows?

M.n
M.n^2
M.n^8
M.n^a

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